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  <title>Returns Phar::GZ or PHAR::BZ2 if the entire phar archive is compressed (.tar.gz/tar.bz and so on)</title>

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</div><hr /><div id="phar.iscompressed" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">Phar::isCompressed</h1>
  <p class="verinfo">(PHP &gt;= 5.3.0, PECL phar &gt;= 2.0.0)</p><p class="refpurpose"><span class="refname">Phar::isCompressed</span> &mdash; <span class="dc-title">Returns Phar::GZ or PHAR::BZ2 if the entire phar archive is compressed (.tar.gz/tar.bz and so on)</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-phar.iscompressed-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <span class="methodname"><strong>Phar::isCompressed</strong></span>
    ( <span class="methodparam">void</span>
   )</div>

<blockquote class="note"><p><strong class="note">Note</strong>: <p class="para">此方法需要
将 <var class="filename">php.ini</var> 中的 <em>phar.readonly</em> 设为
<em>0</em> 以适合 <a href="class.phar.html" class="classname">Phar</a>
对象.  否则, 将抛出<a href="class.pharexception.html" class="classname">PharException</a>.</p></p></blockquote>
 
  <p class="para">
   Returns Phar::GZ or PHAR::BZ2 if the entire phar archive is compressed
   (.tar.gz/tar.bz and so on).  Zip-based phar archives cannot be compressed as a
   file, and so this method will always return <strong><code>FALSE</code></strong> if a zip-based phar archive is queried.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-phar.iscompressed-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   No parameters.
  </p>

 </div>

 <div class="refsect1 returnvalues" id="refsect1-phar.iscompressed-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   <em>Phar::GZ</em>, <em>Phar::BZ2</em> or <strong><code>FALSE</code></strong>
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-phar.iscompressed-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-660">
    <p><strong>Example #1 A <span class="function"><strong>Phar::isCompressed()</strong></span> example</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">try&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$phar1&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">Phar</span><span style="color: #007700">(</span><span style="color: #DD0000">'myphar.zip.phar'</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$phar1</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">isCompressed</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$phar2&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">Phar</span><span style="color: #007700">(</span><span style="color: #DD0000">'myuncompressed.tar.phar'</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$phar2</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">isCompressed</span><span style="color: #007700">());<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$phar2</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">compressAllFilesGZ</span><span style="color: #007700">();<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$phar2</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">isCompressed</span><span style="color: #007700">()&nbsp;==&nbsp;</span><span style="color: #0000BB">Phar</span><span style="color: #007700">::</span><span style="color: #0000BB">GZ</span><span style="color: #007700">);<br />}&nbsp;catch&nbsp;(</span><span style="color: #0000BB">Exception&nbsp;$e</span><span style="color: #007700">)&nbsp;{<br />}<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
bool(false)
bool(false)
bool(true)
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-phar.iscompressed-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="pharfileinfo.getcompressedsize.html" class="function" rel="rdfs-seeAlso">PharFileInfo::getCompressedSize()</a> - Returns the actual size of the file (with compression) inside the Phar archive</span></li>
    <li class="member"><span class="function"><a href="pharfileinfo.iscompressed.html" class="function" rel="rdfs-seeAlso">PharFileInfo::isCompressed()</a> - Returns whether the entry is compressed</span></li>
    <li class="member"><span class="function"><a href="pharfileinfo.decompress.html" class="function" rel="rdfs-seeAlso">PharFileInfo::decompress()</a> - Decompresses the current Phar entry within the phar</span></li>
    <li class="member"><span class="function"><a href="pharfileinfo.compress.html" class="function" rel="rdfs-seeAlso">PharFileInfo::compress()</a> - Compresses the current Phar entry with either zlib or bzip2 compression</span></li>
    <li class="member"><span class="function"><a href="phar.decompress.html" class="function" rel="rdfs-seeAlso">Phar::decompress()</a> - Decompresses the entire Phar archive</span></li>
    <li class="member"><span class="function"><a href="phar.compress.html" class="function" rel="rdfs-seeAlso">Phar::compress()</a> - Compresses the entire Phar archive using Gzip or Bzip2 compression</span></li>
    <li class="member"><span class="function"><a href="phar.cancompress.html" class="function" rel="rdfs-seeAlso">Phar::canCompress()</a> - Returns whether phar extension supports compression using either zlib or bzip2</span></li>
    <li class="member"><span class="function"><a href="phar.compressfiles.html" class="function" rel="rdfs-seeAlso">Phar::compressFiles()</a> - Compresses all files in the current Phar archive</span></li>
    <li class="member"><span class="function"><a href="phar.decompressfiles.html" class="function" rel="rdfs-seeAlso">Phar::decompressFiles()</a> - Decompresses all files in the current Phar archive</span></li>
    <li class="member"><span class="function"><a href="phar.getsupportedcompression.html" class="function" rel="rdfs-seeAlso">Phar::getSupportedCompression()</a> - Return array of supported compression algorithms</span></li>
   </ul>
  </p>
 </div>


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